Finding the Fourth Proportional to 13,162.74, 18,145.35 and 10,013.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,162.74 : 18,145.35 = 10,013.46 : x
2. Step 2: Convert to fraction form
   13,162.74/18,145.35 = 10,013.46/x
3. Step 3: Cross multiply
   13,162.74x = 18,145.35 × 10,013.46
4. Step 4: Simplify right side
   13,162.74x = 181,697,736.41
5. Step 5: Solve for x
   x = 181,697,736.41/13,162.74
6. Step 6: Final answer
   x = 13,803.94